I am preparing for GRE from past 1.5 months have exam in 7 days. I am stuck at 150 Quant in mock test. How can I improve this

GRE Quant Problem Solving
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I am really stressed. I am preparing for GRE from past 1.5 months have exam in 7 days. I am stuck at 150 Quant in mock test. How can I improve this

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